* {
    text-size: 30px;
    font-family: "微软雅黑"
}

/* clearf的子元素的最后一个after*/
.clearf:after {
    display: block;
    clear: both;
    content: "";
}

.container {
    margin: auto;
}

/* 头部样式 */
.header {
    /*background-image: url("../img/3x/my_bg.png")  ;*/
    /* 1x图片，显示不全，不能拉伸怎么办？ */
    /* 方法1： */
    background: url("../img/3x/my_bg.png") no-repeat 0 0 /100% 100%;
    /* 方法2： */
    /* 平铺*/
    background-repeat: no-repeat;
    /* 方法3： */
    background-size: cover;
    /* 拉伸*/
    background-size: 100% 100%;
    height: 500px;
    /*width: 100%;*/
    padding: 20px;
}

.img_right {
    float: right;
    margin-left: 30px;
}

.img_left {
    margin-left: 30px;
    margin-top: 30px;
}

.user {
    margin-top: 50px;
}

.img_header {
    float: left;
    margin-right: 20px;
}

.user_detail {
    float: left;
    color: white;
    margin-right: 20px;
    top: 20px;
}

.user_more {
    float: right;
    position: relative;
    top: 70px;
}

.user_name {
    color: white;
    font-size: 60px;
}

.register {
    color: white;
    border: 2px solid white;
    border-radius: 5px;
    margin-left: 10px;
    letter-spacing: 5px;
    line-height: 50px;
    font-size: 30px;
}

.phone {
    color: white;
    font-size: 30px;
}

.nav_img {
    float: left;
    margin-left: 30px;
    position: relative;
    top: 18px;
    margin-right: 30px;
}

body {
    background: #999999;
}

.nav_more {
    float: right;
    position: relative;
    margin-right: 20px;
    top: 50px;
}

.nav > div > div {
    float: left;
    line-height: 100px;
    font-size: 40px;
}

.nav > div {
    background: white;
    line-height: 90px;
    margin-bottom: 1px;
}

.message {
    margin-bottom: 50px;
}

.footer {
    background-color: white;
    position: absolute;
    bottom: 0;
    width: 100%;
}

.footer li {
    width: 50%;
    float: left;
    font-size: 50px;
    text-align: center;
    list-style-type: none;
}

.footer ul {
    line-height: 150px;
}
